Tag: tappet

NX numbers on older designs, logbook records, proving compliance with the 51% rule.

It’s your best way of letting other making your presence known to other pilots, so your exterior lighting system deserves careful thought and planning early on in the build process. Fortunately, there are choices for every plane and budget.

Adding a rotary engine to a Q2 is easier said than done.

Builders share their successes.